What is an electromagnet? List any two uses

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field.

Here are two uses of electromagnets:

1. Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment.

2. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel.